Rule 34 Dev - 1girl apron arm_behind_back bandana blush breasts greyscale hair_flaps hair_ornament highres ibuki_(abuki) jingei_(kancolle) kantai_collection large_breasts long_sleeves looking_at_viewer monochrome neckerchief pleated_skirt sailor_collar school_uniform serafuku shawl simple_background skirt smile solo waist_apron|13193000379